Die grinder



FIG. 1 is a front, bottom, and right side perspective view of a die grinder, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a front, top, and left side perspective view thereof; and,

FIG. 9 is a top, rear, and right side perspective view thereof.

The broken lines and white tinted areas within them depict portions of the die grinder that form no part of the claimed design. 

CLAIM The ornamental design for a die grinder, as shown and described. 